
<template>
    <div class="footer">
        <span class="todo-count">共<strong> {{ lastLength }} </strong>条未完成任务</span> 
        <ul class="filters">
            <li> 
                <a @click.prevent="emit('updateStatus', 'all')" :class="{ selected: status === 'all' }" href="#/">All</a> 
            </li> 
            <li> 
                <a @click.prevent="emit('updateStatus', 'active')" :class="{ selected: status === 'active' }" href="#/active">Active</a> 
            </li> 
            <li> 
                <a @click.prevent="emit('updateStatus', 'completed')" :class="{ selected: status === 'completed' }" href="#/completed">Completed</a> 
            </li> 
        </ul>
    </div>
</template>

<script setup>
const emit = defineEmits(['updateStatus'])
const props = defineProps(['lastLength', 'status']) 
</script>

<style scoped>
/* 可根据需要添加样式 */
.footer {
  color: #777;
  padding: 10px 15px;
  height: 20px;
  text-align: center;
  border-top: 1px solid #e6e6e6;
  background: #fff;
  box-shadow: 0 1px 1px rgba(0,0,0,0.2), 0 8px 0 -3px #f6f6f6, 0 9px 1px -3px rgba(0,0,0,0.2), 0 16px 0 -6px #f6f6f6, 0 17px 2px -6px rgba(0,0,0,0.2);
}
.todo-count {
  float: left;
  text-align: left;
}
.todo-count strong {
  font-weight: 300;
}
.filters {
  margin: 0;
  padding: 0;
  list-style: none;
  position: absolute;
  right: 0;
  left: 0;
}
.filters li {
  display: inline;
}
.filters a {
  color: inherit;
  margin: 3px;
  padding: 3px 7px;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 3px;
}
.filters a:hover {
  border-color: rgba(175, 47, 47, 0.1);
}
.filters a.selected {
  border-color: rgba(175, 47, 47, 0.2);
}
</style>